Arbor



Filed June 18. 1924 cs. J. HULBERT 1,738,145

'ARBOR 3 Sheets-Sheet l affonda,

Dec. 3, 1929. G. J; HULBERT 1,733,145

ARBOR Filed June 18, 1924 5 Sheets-Sheet 5 Q o xNvENToR Patented Dec. 3, 1929 UNITED STATES PATENT OFFlC GEORGE J. HULBERT, OF SEATTLE, WASHINGTON ARBOR Application filed `Tune 18, 1924. Serial No. 720,856.

This invention relates to an improvement slides are made up of annular members 7 havin arbors or mandrels, and more particularly in@r comparatively large central openings 8 to such parts as are designed tor use in eonand held in spaced relation byannular secnection with lumber edging machines, tions 9 with the interior diameter of the lat- 5 In cutting shingles or the like, it requentter greater than the maximum diameter oi' 55 ly happens that in order to get a clear shingle, the openings 8. The slides are thus interiorlyf the saws must be operated to cut a section on recessed, as clearly shown in Fig. 8, and the opposite sides of an imperfection, such as a particular formation of the slides, other than knot, and this requires a quick shitting oi' the to provide the construction described, is of 1e desired saws upon the arbor to maintain the little importance so far as the particular in- 60 line of cut at the desired point. vention is concerned, and these slides may In my Patent No. 1,390,958, I have Shown be obviously made up in many Ways. means for shifting saws upon the arbor, such A connecting plate 10, of circular lorin, is construction however having proven, under adapted to loosely seat in the recess provided i5 some circumstances, to be mechanically obin the slides, this plate being held. against G5 jectionable as there was a tendency ot the trictional engagement with the slide but saws to cant, cramp or Wedge upon the arbor, yet incapable of separation from the slide. due to the lack of balancing means. At diainetrically opposite points, the ends et The present invention is designed particuthe arbor are provided with pulleys 11, and

o laily to overcome this objection, among cables 12 extend over these pulleys at one end, 70 others, and the present construction contembeing terminally connected to a particular plates a manually controlled connection, in slide at 13 and to a particular saw collar 3 the operation oi which, the saws, or any one at 1li at diametrically opposite points oi each of them, may be shifted at will, while mainslide and each saw carrying collar. As each taining a balanced operation, thereby insursaw carrying collar is thus connected to its 75 ing an easyl sliding movement of the saws, particular slide, it will be apparent that with without liability of wedging on the arbor the movement of the slide` the saw collar will during such movement. be correspondingly moved and by reason oit The invention is illustrated in the accomthe particular diametric connection of the panying drawings, in which: cables 12, on opposite sides of the slide and S0 F 1 is a View in elevation partly in secsaw carrying collars, any movement of the tion of the arbor, saws, and operating means. saw carrying collars is balanced, in that an Fig. 2 is an enlarged transverse section ot equal pull is provided thereon at diametrithe same. cally opposed points. The cables for con- Y Fig. Sis avertical section of the slide. nectinfr the slides and saw` carrying collars e5 Fig. d is a vertical section ot" the connectwill oi course pass through all other collars ing plate operative within the slide. and slides than the ones to which they are Fig. 5 is an end view of the arbor and condirectly connected, the slides being toi-med nected parts. with a series of openings 15 and the saw cai'- io Fig. 6 is a plan view of my device. rying collars with openings 16 to permit this te In the drawings, the arbor 1, o' tubular free passage of the cables. form, carries end bushings 2, rotatively The connecting plates 10 are held against mounted in suitable bea-rings in the trame of rotation with the arbor and slides by rods the edger or like machine. Collars 3 are 17, which pass through the plates and are 45 keyed upon the arbor for sliding movement terminally secured to the trame of the edger. e5

and these collars receive and lixedly support Each connecting plate is secured to the rethe usual saws e. Circular slides 5 are arspective terminals of oppositely projecting ranged for sliding cooperation with the incables or chains 18, and these chains are ei;- teiior ot the arbor, being held against other tended to the `front edge ot the machine to a 5o than sliding movement by keys 6. These position convenient to the operator and are ice secured to an operating lever, such for example, as described in my former Patent No. 1,390,958. The operating chains, other than those connected to the particular connecting plate 10, pass through openings 19 in the remaining connecting plates to permit independent adjustment of the slides.

The inside cables 18 pass out at the ends of the arbor and thence may pass over shives 20, Fig. 6, that are mounted on the ends of the frame 21 of the machine, thence toward the front of the machine and over other shives 22 and thence along the front of the machine and be secured to' handles 23 that are movable lengthwise of the machineas on Y at diametrically opposite points. It is ap that parent that the operating cables that extend to the remote control will extend out of the ends of the arbor because they do not rotate therewith but that the adjusting cables that extend to the saws may pass from inside to outside of the arbor at any point outside of or beyond the limits of movement of the saws on the arbor. Y

In use, when a saw is to be shifted, the operator, through manipulation of the levei` and thereby the chain connected to the connecting plate of the particular slide, operates slide in thev desired direction and through the medium of the cables 12, correspondingly moves the saw.

, While the improved arbor is shown as for particular use with edging machines, it is to be understood that it is well adapted for other purposes, and such are contemplated as within the spirit of the present invention.

Claims: l Y

1. The combination of'a rotary shaft and a laterally adjustable saw orsaws mounted thereon, of means for adjusting the saws by a deviceoperating parallel to and adjacent y the'axis of the shaft, and involving connections from said device to the saws at points more remote from said axis and outside of the shaft which are guided to move parallel with the shaft and extend from inside to outside of the shaft without intersecting that portion ofthe shaft along which the saw is to be adjusted.'l

2. A device such as is covered by claim 1, in which the 'connections are flexible members guided from the inside of the shaft to the Voutside of the shaft around the ends of the shaft.

3. A device such as is'covered by'claim 1,

in which the connection includes a slide or slides inside of the shaft and a plate revolv ably related to each slide and to which the adjusting device is connected.

4. A device such as is covered by claim 1, in which the connecting devices include a slide or slides within the shaft, a dise revolubly related to each of said slides to which the adjusting device is connected, and guide rods upon which said disc may slide.

5. In combination a rotatably mounted tubular arbor, one or more disc like members adjustable lengthwise along said arbor, that portion of the walls of said arbor within the limits of adjustment of said members being solid and non-perforated. and means operable from within said arbor and connected with said members outside of said arbor for adjusting said members.

6. In combination a rotatably mounted tubular arbor, a disc like member mounted for longitudinal movement on said arbor and means connected with said member and operable from within said arbor and extending from interior to exterior thereof outside the limits of longitudinal movement of said member for adjusting said member.

7. In combination a rotatable tubular arbor, one or more disc like members mounted on the exterior of said arbor for rotation therewith and adjustment lengthwise thereon and means operable from within said arbor and extending from interior to exterior of said arbor beyond the limits of movement of said members and connected with said members on the exterior of said arbor at balanced points to adjust said members along said arbor without tending to cant said members.

8. In combination, a rotatably mounted tubular arbor, one or more disc like members mounted for longitudinal movement on said arbor, adjusting means connected with said members and operable from within said arbor and extending Yfrom interior to exterior thereof outside of the limits of longitudinal movement of said members and devices controlled from a remote point and extending into the end of said arbor for operating said adjusting means.

- In testimony whereof I aiiix my signature.

GEORGE J. HULBERT.

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